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Administrator

#130 09/23/2016 at 08h04

Please try the following R script and let me know if it works:

Code R :

 
x <- 1:100
y <- x^2 + 2*x
 
plot(x, y, log = "xy")
 
model = lm(log(y) ~ log(x))
lines(x, exp(predict(model, newdata=list(x=x))) ,col = "red")

Best,
A>

Member

#129 09/22/2016 at 20h04

Does anyone know how to fit a linear regression to a graph with log transformed axes? using the untf function hasn't worked for me.